Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 12 26.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2015   02:02:37   (  79.32,  44.98) 12/27/2015   02:02:24  (  79.33,  45.08)    2.24                13
 12/27/2015   02:52:00   ( -79.48,-146.33) 12/27/2015   02:53:05  ( -79.47,-146.45)    2.59                65
 12/29/2015   17:29:45   ( -79.10,  -8.19) 12/29/2015   17:28:39  ( -79.11,  -8.07)    2.78                66
 12/29/2015   18:19:04   (  79.37, 161.17) 12/29/2015   18:19:16  (  79.37, 161.17)    0.15                12
 01/01/2016   09:46:10   ( -79.21, 108.39) 01/01/2016   09:45:29  ( -79.22, 108.50)    2.47                41
 01/01/2016   10:35:29   (  79.47, -82.23) 01/01/2016   10:36:06  (  79.47, -82.22)    0.25                37
 01/04/2016   02:02:36   ( -79.23,-135.62) 01/04/2016   02:02:21  ( -79.22,-135.71)    1.95                15
 01/04/2016   02:51:52   (  79.60,  34.54) 01/04/2016   02:52:54  (  79.61,  34.66)    2.55                62
 01/06/2016   17:29:38   (  79.13, 172.04) 01/06/2016   17:28:31  (  79.14, 172.13)    1.85                67
 01/06/2016   18:18:58   ( -79.42, -18.48) 01/06/2016   18:19:08  ( -79.43, -18.38)    2.18                10
 01/09/2016   09:46:02   (  79.23, -71.45) 01/09/2016   09:45:21  (  79.24, -71.36)    1.98                41